It goes live on pump.fun. The line you pick decides whose wallets its fees are paid to, and it can't be changed later.
80% of fees go to holders who bought in the pump.fun app.
Every pump.fun app trade calls the app's own program, so its buys can be told apart on chain.
80% of fees go to holders who bought in the FOMO app.
FOMO's relayer co-signs every FOMO trade, so its buys can be told apart on chain.